Engaging Radiometer in the dark

[flogged]

Laser is ~100mW. Don't use it often. Want it to live as long as possible - I've got only one 815 diode remaining.

 

[InfinitusEquitas]

Really really hope you're wearing goggles.

Please be careful of reflections, there were a few times you came close to having the beam almost right back at yourself, and 100mW is more than enough to do damage.

 

[flogged]

Black light laser and radiometer -